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Injectable GHK-Cu is not FDA-approved for human use, and site choice should come from a licensed clinician when an injectable medication has actually been prescribed
If you want carefully reviewed evidence and research-backed approaches to wellness, explore clinical resources and the Tonum research hub at Tonum Research
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However, skin benefits may gradually reduce over time if maintenance treatment and healthy habits are not followed
Optimal dosage can vary, but 250500mg per day is common
